Apparatus for pile-driving or drilling
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United States of America Patent
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Oct 18, 2016
Grant Date -
Oct 1, 2015
app pub date -
Mar 3, 2015
filing date -
Apr 1, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
An apparatus for pile-driving or drilling, particularly a foundation machine, including at least one hydraulic drilling or vibration drive, which is connected with a control block in an open hydraulic circuit, by way of which drive at least one further consumer can be operated. The drive is connected with a pump by way of a first feed line and with a tank by way of a first return line. The hydraulic drive is additionally connected directly with the pump by way of a second feed line, and directly with the tank by way of a second return line.
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